Question

在我的表格中，我有一个字段“youtube”，用户可以在其中添加Youtube或Vimeo链接。 Youtube链接可以直接播放，Vimeo链接看起来像：

https://player.vimeo.com/video/22614651XX

需要替换为：

package Packet;
import java.util.*;
import java.util.Scanner;

public class Logic {

public static class TicTacToe{

    private int[] currentBoard = new int[9];
    private int[] availableSpots = new int [9];

    private int emptySpace = 0;
    private int playerAI = 1;
    private int playerHuman = 2;


    void TicTacToe(){
        for (int i = 0; i < 9; i++){
            this.currentBoard[i] = this.emptySpace;
        }
        for (int i = 0; i < 9; i++){
            this.availableSpots[i] = i;
        }
    }

    private int movesNumber(){
        int counter = 0;
        for (int i = 0; i < 9; i++){
            if (this.currentBoard[i] == this.emptySpace){
                counter++;
            }
        }
        return counter;
    }

    private boolean win(int[] board,int player){
        if (
        (board[0] == player && board[1] == player && board[2] == player) ||
        (board[3] == player && board[4] == player && board[5] == player) ||
        (board[6] == player && board[7] == player && board[8] == player) ||
        (board[0] == player && board[3] == player && board[6] == player) ||
        (board[1] == player && board[4] == player && board[7] == player) ||
        (board[2] == player && board[5] == player && board[8] == player) ||
        (board[0] == player && board[4] == player && board[8] == player) ||
        (board[2] == player && board[4] == player && board[6] == player) ){
            return true;
        }
        else{
            return false;
        }
    }

    private int mechanics(int[] newBoard, int player){
        if (win(newBoard,this.playerHuman)){
            return -10;
        }
        else if (win(newBoard, this.playerAI)){
            return +10;
        }
        else if (this.movesNumber() == 0){
            return 0;
        }

        ArrayList<Integer> moves = new ArrayList<Integer>();
        ArrayList<Integer> scores = new ArrayList<Integer>();


        for (int i = 0; i < this.movesNumber(); i++){
            int[] possibleBoard = new int[9];
            possibleBoard = newBoard;           

            int availableSpotNumber = i;

            int j = i;

            while (this.availableSpots[j] == 9){
                availableSpotNumber++;
                j++;
            }

            possibleBoard[availableSpotNumber] = player;

            if (player == this.playerAI){
                scores.add(this.mechanics(possibleBoard, this.playerHuman));
            }
            else{
                scores.add(this.mechanics(possibleBoard, this.playerAI));
            }
            moves.add(availableSpotNumber);

            possibleBoard[availableSpotNumber] = this.emptySpace;
        }

        int bestMove = 0;

        if (player == this.playerAI){
            int bestScore = -10000;
            for (int i = 0; i < moves.size(); i++){
                if (scores.get(i) > bestScore){
                    bestScore = scores.get(i);
                    bestMove = i;
                }
            }
        }
        else {
            int bestScore = 10000;
            for (int i = 0; i < moves.size(); i++){
                if (scores.get(i) < bestScore){
                    bestScore = scores.get(i);
                    bestMove = i;
                }
            }
        }
        return moves.get(bestMove);
    }

    public void printTable(){
        System.out.println(this.currentBoard[0] + " | " + this.currentBoard[1] + " | " + this.currentBoard[2]);
        System.out.println("-   -   -");
        System.out.println(this.currentBoard[3] + " | " + this.currentBoard[4] + " | " + this.currentBoard[5]);
        System.out.println("-   -   -");
        System.out.println(this.currentBoard[6] + " | " + this.currentBoard[7] + " | " + this.currentBoard[8]);
        System.out.println();
    }

    private void fillTable(int position,int player){
        this.currentBoard[position] = player;
        this.availableSpots[position] = 9;
    }

    public void startGame(){
        while(true){
            this.printTable();
            Scanner ulaz = new Scanner(System.in);
            fillTable(ulaz.nextInt(), this.playerHuman);
            this.printTable();
            fillTable(this.mechanics(this.currentBoard, this.playerAI), this.playerAI);
            ulaz.close();
        }
    }

    public void resetGame(){
        for (int i = 0; i < 9; i++){
            this.currentBoard[i] = this.emptySpace;
        }
        for (int i = 0; i < 9; i++){
            this.availableSpots[i] = i;
        }
    }
}

public static void main(String[] args){
    TicTacToe game = new TicTacToe();
    game.startGame();
}
}

这可以用SQL完成还是应该用PHP完成？在PHP中，我找到了substr（）函数，我可以在其中分割字符串，但我不知道如何处理数字，因为它们的长度可能不同......

Answer 1

感谢您的帮助： - ）

def rddAndBack(sc: SparkContext, df: DataFrame) : DataFrame = {
  val sqlContext = df.sqlContext
  sqlContext.createDataFrame(df.rdd, df.schema)
}

诀窍： - ）

亲切的问候，

的Stefan

替换并追加String的一部分 - MySQL

1 个答案: